Guhring 9003010003100 Micro Drill Bit Wire 83 Cobalt

Product Description

The GUHRING 9003010003100 is a cobalt micro drill bit designed for precision drilling in small-diameter applications. Built to DIN 1899 standards, this Series 301 bit carries a wire gauge size of 83, which corresponds to a decimal diameter of 0.0122 inches. It features a 118-degree faceted point angle with web thinning on a tapered web configuration, promoting accurate entry and clean hole formation. The overall length is 0.984 inches, with a straight-cylindrical shank diameter of 1.00 mm. The bright, uncoated cobalt construction offers solid heat resistance for demanding materials. This bit is sized for use by machinists, tool and die technicians, and precision fabricators working at micro-scale tolerances.

This micro drill bit is suited for drilling aluminum as its primary workpiece material, with titanium alloy listed as a secondary compatible material. The 5xD flute-to-diameter ratio and spiral flute geometry support chip evacuation in shallow, precision holes. Maximum drilling depth is 0.076 inches (1.94 mm), making it appropriate for through-holes and blind holes in thin stock, printed circuit board assemblies, small mechanical components, and aerospace or medical fabrication work where tight tolerances are required.

Key Features

• Wire size 83 with 0.0122 inch decimal diameter for micro-precision applications
• 118-degree faceted point angle with web thinning for accurate, low-thrust entry
• Cobalt tool material provides elevated heat and wear resistance versus standard HSS
• Bright/uncoated finish suitable for aluminum and titanium alloy workpieces
• Spiral flute with 5xD ratio supports chip removal in shallow-depth holes
• Conforms to DIN 1899 specification for consistent dimensional standards

Compatibility

Designed as an OEM-style precision drill bit replacement for applications requiring wire gauge size 83 cobalt micro drills conforming to DIN 1899 Series 301 standards. Primary workpiece material compatibility includes aluminum; secondary compatibility includes titanium alloy.

Installation Notes

Installation and use of micro drill bits at this diameter should be performed by qualified machinists using precision drill presses, CNC machining centers, or high-speed micro-drilling equipment with appropriate collet or chuck tooling rated for 1.00 mm shank diameters. Always ensure the spindle and workpiece are secured before operation. Do not exceed the maximum drilling depth of 0.076 inches without retracting to clear chips. Proper spindle speed selection for the workpiece material is critical to avoid bit breakage at this diameter.